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From fireflies to artificial cold light.
Since the invention of electric light, life has become much more convenient and richer. But electric light can only convert a small part of the electrical energy into visible light, and most of the rest is wasted in the form of heat, and the heat rays of electric lights are harmful to the human eye. So, is there a light source that only emits light but does not heat up?
Humanity has turned its attention to nature again.
In nature, there are many organisms that can emit light, such as bacteria, fungi, worms, mollusks, crustaceans, insects and fish, etc., and the light emitted by these animals does not produce heat, so it is also called "cold light".
Among the many light-emitting animals, fireflies are one of them. There are about 1,500 species of fireflies, and the colors of their cold light range from yellow-green to orange, and the brightness of the light varies. The cold light emitted by fireflies not only has a high luminous efficiency, but also the cold light emitted is generally very soft, which is very suitable for human eyes, and the intensity of the light is relatively high.
Therefore, biolight is a kind of light that is ideal for human beings.
Scientists have found that the glowing device of the firefly is located in the abdomen. This luminaire is composed of three parts: a light-emitting layer, a transparent layer and a reflective layer. The luminescent layer has thousands of light-emitting cells, and they all contain two substances, luciferin and luciferase.
Under the action of luciferase, luciferin fluoresces when it is oxidized with the participation of intracellular water. The luminescence of fireflies is essentially the process of converting chemical energy into light energy.
Back in the 40s, fluorescent lamps were created based on the study of fireflies, which changed the source of human lighting a lot. In recent years, scientists have isolated pure luciferin from the luminescent device of fireflies, and later isolated luciferase, and then chemically synthesized fluorescein. A biological light source composed of a mixture of luciferin, luciferase, ATP (adenosine triphosphate) and water, which can be used as a flash lamp in mines filled with ** gas.
Since this light has no power source and does not generate a magnetic field, it can be illuminated by a biological light source to remove magnetic mines.
Nowadays, people can use the method of mixing certain chemicals to obtain cold light similar to biological light, which is used as safety lighting.
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Read a book on bionics and write about it.
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After reading the book Animal World, I learned about the life characteristics and special abilities of woodpeckers and anteaters, and I suddenly thought of a question from them, and at the same time got an inspiration: In rural orchards, we often find pests burrowing into tree trunks and ripe fruits, and in order to protect the orchards, farmers have to constantly spray a large number of pesticides. Not only is the cost high, but also when people eat it, the excessive pesticides make people daunting, if the pest control is not timely, people have to cut down those "incurable" fruit trees painfully.
In the modern countryside, it is impossible to have so many woodpeckers to help the fruit trees to see a doctor. Nature has taught us a lot of things, airplanes are based on dragonflies, and manicures are modeled after whales at the bottom of the sea, so I thought: why don't we build a lightweight exterminator based on the beak of a woodpecker and the tongue of an anteater?
In this exterminator, we can install a computer chip, so that it can accurately detect diseased trees, and then, we can press a red button on the handle, from which a sharp, hooked steel pipe like a woodpecker's beak will pop out, it can accurately punch a very small hole in the tree of the pest, and then hook it out with a hooked steel pipe mouth. What if it's termites? Don't panic, we can put the steel pipe mouth in first, and then, press the green jian, a tongue that imitates an anteater will bounce from it, and the long sticky tongue will be easily wiped out as soon as it "drills" into the hole.
From the woodpeckers and anteaters foraging, we got an inspiration and thus an innovation.
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Cat Revelation.
The tails of many animals have a role in maintaining balance, such as a small squirrel jumping around in a very high tree, relying on a large tail to maintain balance.
Kittens often run around in trees or on rooftops, they are fast and nimble, and they don't fall and don't get hurt, so why don't kittens jump off rooftops without falling and hurting themselves? It turns out that the kitten has a good balance, and when it jumps down from a high place, it always lands with its feet first and stands firmly. The kitten's tail also helps it maintain balance, and yes, the kitten's feet have a thick layer of flesh pads, just like wearing soft sneakers, so the kitten will not fall when jumping from a height.
Based on this revelation, I had a novel idea, and that is: I wanted to invent a sneaker. These shoes are specially designed for small children, who are born to be alive and kicky, and it is inevitable that they will get hurt when they jump because they don't stand firmly.
These sneakers solve this problem. The bottom layer of the shoe is hard, but the middle layer is soft, which is very comfortable to wear, and when a child jumps from a high place, this kind of shoe also has a balancing effect, so when it lands, it will also stand firm and gentle, just like a kitten.
The pattern of this shoe is also the favorite pattern of the "Pleasant Goat and Big Big Wolf" among children, and there are many colors. I think if I could invent such a shoe, it would be very popular with the general public.
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